In this chapter, we barely scratched the surface of machine learning and how to use machine learning for training Unity agents. We learned how to install Unity's official ML-Agents Toolkit; how to set up Academy, Brain, and Agents; and how to train the model. However, this is just a basic introduction to the ML-Agents Toolkit; there a lot of unexplored directions that are waiting for you.
With this chapter, we have covered all the basic gameplay AI techniques. In the next chapter, we will wrap everything up by developing an AI agent into a more complex game demo.